11611160165666 has 8 divisors (see below), whose sum is σ = 17533631123100. Its totient is φ = 5766616457968.

The previous prime is 11611160165641. The next prime is 11611160165677. The reversal of 11611160165666 is 66656106111611.

It can be written as a sum of positive squares in 2 ways, for example, as 11464122428641 + 147037737025 = 3385871^2 + 383455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11611160165666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19481812061 + ... + 19481812656.

Almost surely, 2^{11611160165666} is an apocalyptic number.

11611160165666 is a deficient number, since it is larger than the sum of its proper divisors (5922470957434).

11611160165666 is a wasteful number, since it uses less digits than its factorization.

11611160165666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38963624868.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 11611160165666 in words is "eleven trillion, six hundred eleven billion, one hundred sixty million, one hundred sixty-five thousand, six hundred sixty-six".